Abstract
Against the huge tsunami with the subduction-zone earthquake, structures such as breakwater and seawall are constructed. The expected effects of these structures are to reduce the inundation depth and inundation area. In other words, if we estimate tsunami inundation using numerical simulation accurately, it is necessary to reflect the situation of these structures in the numerical models. However in the present technology, it is difficult to predict while to estimate and reflect the destruction process by earthquake and tsunami attack. In this study, we assume that the damage level of structures are uncertain phenomenon and we develop that evaluated the tsunami inundation stochastically using Monte Carlo method.
Highlights
Against the huge tsunami with the subduction-zone earthquake, structures such as breakwater and seawall are constructed
It can be seen that inundation area greatly varies depending on the damage rate of structures in particular inner part of the bay
Inundation area and inundation volume are reduced by the effect of structures, but inundation depth is increased by the influence of reflection from structures
Summary
Against the huge tsunami with the subduction-zone earthquake, structures such as breakwater and seawall are constructed. NUMERICAL MODEL The numerical simulator named STOC (Storm surge and Tsunami simulator in Oceans and Coastal areas) was developed by Port and Airport Research Institute (PARI). We chose the hydrostatic pressure approximation into the vertical direction model (STOC-ML).
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